Image quality test results have been added to the Nikon 200-500mm f/5.6E AF-S VR Lens page.
This is a much-loved lens that has great utility. However, this model does seem to show more than average image quality variability. This particular copy shows good performance at the focal length extents (typically the most-used on a zoom lens). The lateral CA in the with-2x Teleconverter III corners is ... rather extreme.
The Nikon 200-500mm f/5.6E AF-S VR Lens is in stock at B&H (note the used options in up to 10 condition) | Amazon (note the certified refurbished option)| Adorama | WEX.
Rent the Nikon 200-500mm f/5.6E AF-S VR Lens from Lensrentals.